Soot eradicator



Aug. 1 1925:

G. L- HESS soow ERADICATOR Filed May 2 1924 2 Sheets- Aug. 18,1925. I 1,550,357

G. L. HESS SOOT ERADICATOR Filed May 26, 1924 2 Sheets$hoet 2 g anan.

8 MIME}:

GL .Hess

ATTORNEY.

i 1 i I INVENTOR.

Patented Aug. 18, 1925.

{PATENT GEORGZEL. HESS, or INDIAAIAZEQLIS, INDIANA sc on Emmqe'roa.

Application filed May 26,

To all whom it may concern:

Be it known that I, Gnonsn L. Hess, a citizen of the United States residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new andiuseful Improvements in Soot Eradicators, of which the following is a specification.

Mysaid invention relates toa soot eradicator the principal purpose of which is .to re- ,InOVeisoot from smoke in an efficient manner thereby reducing the smoke nuisance particularly in Cities'and manufacturing districts and to realize profit from the preservation and sale of the by-product as a coloring matter. I

Referring to ,the accompanying drawings whichare made a partihereoif a nd on which imilar reference charactersjindicate similar P rt Figure 1 isanelevation of my device,

Figure'2, a section on ;line 22 of Fig su 1, V

Figure 3 a section on line 3-3 of Figure 1,

Figure a, a section on line 4l4= of Figure 5,

Figure 5, a lcentral vertical section of the device at right angles to the plane of Figure ,1,

Figure .6, asection on line .6-6 vof Fig- .ure 5, and

In the drawings reference character 10 indicates a ,casingadapted to be mounted in or on a smoke pipe .or stack .01 in or on a device connected to such smoke pipe or stack in such a manner that the smoke can be caused to pass through said casing. At any convenient distance from the bottom ,of ,the casing a transverse support is provided, this support having an :uninterrupted' central portion 11 providing -a deflector for protecting the parts above thesame from the direct action of the heat from the fire and having radial arms 12 secured to the casing in any convenient manner; At the center of the deflector there is a step bearing 13 supporting an upright shaft 14 journaled at its upper ,end in tubular ,bearing on a cruciform support 15. The shaft carries a lower fan a section on line 77 of Figezi. Serial No. 716.036.

screen through which the smoke may pass T with some retardation. The outer periphery of the larger cap is spaced from the .wall of the cas ng so that the residue of the smoke can pass f-ree'1y between suchperiphcry and the wall. A screen mill 1 9 correspond ng in form to the casing and therefore ord narily tubular has a closed end 20 also of wire-screen through which the shaft '14 passes.

The screen mill is closed at'the bottom by a floor 21 of wire screen wjl iiich has an opening of sufficient size to receive the fan lfias shown. Beneath the lower fan .or ifdesired beneath each fan there are pipes 22 providing for the passage of fresh air into the screen mill as a means of cooling the mill and its content andof purifying the soot-laden gases above said pipes the'reby increa ing the weight of the content and the retardation incident thereto.

A motor '28-,iS mounted outside thecasing and serves to drive a shaft 24 connected by bevel gearing25-and'26 to drive theshaft 1 L. Said motor may be an electric motor, a

spring motoror any other preferred form of mot-or and may be controlled by means of a cord shown at 27. The shaft 24 also carriesa pulley28 driving afbelt 29 the use of which will appear hereinafter.

In some cases the mechanism heretofore described will be insufficient for satisfactory removal of the soot and in such cases I providemeans which may remain idle except when needed and which if needed acts subsequently to the screen mill hitherto demally kept raisedas indicated. in the dotted I line position .of Figure 5 but when the auxiliary mechanism above referred to :is to be put in use the cap is lowered to the-full line position whereupon the smoke ceases to pass directly upward out .of the cas ngand .venient manner said screens having their the casing.

follows the line indicated by arrows at the right hand side of Fig. 5, passing down through a conduit 33 to a casing 23% and thence out through aconduit 35 back to the upper end of the casing 10.

The casing 23% is in effect a tank sup ported on a bracket 36 secured in any convenient manner to the upright casing 10. A quantity of water or other suitable material, preferably liquid, is held in the lower part of the tank and a shaft 87 is journaled in the casing which shaft is here shown as being above the level of the water though this need not necessarily be so. ihe shaft is driven bythe belt 29 passing over a pulley 3'7 and it carries a plurality of circular screens 38 secured to the shaft in any con- 39 fixed to the wire screens and lying close to the wall of the circular casing.

It will be evident from the above descrip tion that smoke normally passing directly through the casing 10 will be deflected and slightly delayed by the deflector 13 after which the fans will act eentrifngally to produce currents passing through the walls of the tubular screen. This action will inter rupt the direct upward course of the smoke and thus cause some of the heavier particles of soot to fall back toward the bottom of Other particles will be caught by the screen and may then adhere thereto for a time or also fall back. This action is further assisted by the deflector 18 and after passing this deflector the smoke which has been purified to a considerable extent may then go on out of the chimney in ordi-- nary manner. If the smoke is very dense or if there is serious objection to soot in a particular locality I may pass the smoke through the tank in which the screen fans 38 are then turned by means of the shaft 37. if the screens are wet they will act more effectively to sift out all soot in the smoke and by reason of their revtf ing action they will pass through the water at each rotation and be washed to free them of soot, tn ater, of cou e, being drawn off at prop-er intervals and fresh water supplied.

The soot may be removed by anv suitable means either manually or on'iaticallv, and may thereafter be trd. in various ways, as by refining, iilteri A to prepare it for market, in the form Oi pblack fo use an ingredient of paint and printers ink and for other purposes well known to those skilled in the industrial arts.

It will be obvious to those skilled in the art that various modifier "ions may he made in my device without departing from the spirit of the invention and therefore I do not limit myself to what is shown in the drawings and described in the specification but only as indicated in the appended claims.

outer periphery protected by means of rings Having thus fully described my said invention, what claim as new and desire '1 secure by Letters Patent, is:

i. ii soot eradicator comprising a tubular screen locat l in position to receive smoke, and fans within the screen for forcing the smoke radially outward through its walls, substantially as set forth.

it soot eradicator comprising a tubular screen located in position to receive smoke, said screen heing closed at its upper end by screen material, and one or more fans with in the screen for forcing the smoke out through the walls and the tops, substantially as set forth.

3. it soot eradicator comprising a tubular screen located in position to receive smoke, s" l screen being closed at its upper end, czns within the screen for forcing the smoke through its walls, and a deflector below the screen for protecting it from the direct heat of the fire, substantially as set forth.

A soot eradicator comprising a tubular screen located in position to receive smoke, said screen being closed at its upper end, means within the screen for forcing the smoke through its walls, a deflector below the screen for protecting it from the direct heat of he fire, a shaft having av step bearing aid deflector said shaft extending up ugh the screen, and means on the shaft 1 rec the smoke through the sides of the screen, substantially as set forth.

A soot eradicator comprising a tubular screen located in position to receive smoke, said screen being closed at its upper end, one or more fans within the screen for forcing the smoke out through the walls, and means for admitting fresh air into the screen adjacent to said fans, substantially as set forth.

6. soot eradicator comprising a casing, a tubular screen located in position to receive smoke, said screen being closed at its upper end, a shaft extending axially of the screen, one or more fans driven by said shaft, and a deflector secured to the shaft above the screen to force the smoke toward the walls of the casing, substantially as set forth.

'Z. in a soot eradicator, a dry screen mill through which the smoke passes, means adjacent thereto for washing the smoke and controlling means whereby the smoke may be caused to pass through the washingmeans, substantially as set forth.

8. in a soot eradicator, a dry screen mill through which the smoke passes, a tank adjacent thereto through which the smoke may pass said tank being circular in vertical section, a shaft located axially of the tank, screens on said shaft, and means for rotating the screens for cleaning them, substantially as set forth.

9. In a soot eradicator, a dry screen mill in the tank for Washing said screening through which the smoke passes, a casing means, substantially as set forth. 10 enclosing the screen-mill, a cap in the casing In Witness whereof I have hereunto set beyond said screen-mill, a conduit through my hand at Indianapolis, Indiana, this 17th 5 Which the smoke passes When the cap is day of May, A. D. nineteen hundred and closed, a tank forming part of said conduit, twenty-four. means in said tank for screening the smoke passing therethrough, and a body of liquid GEORGE L. HESS. 

